CN106939939B - Wheel rim inflation and deflation valve - Google Patents
Wheel rim inflation and deflation valve Download PDFInfo
- Publication number
- CN106939939B CN106939939B CN201610025381.8A CN201610025381A CN106939939B CN 106939939 B CN106939939 B CN 106939939B CN 201610025381 A CN201610025381 A CN 201610025381A CN 106939939 B CN106939939 B CN 106939939B
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- valve
- diaphragm
- valve body
- pressure maintaining
- clack
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The utility model provides a wheel limit inflation and deflation valve, mainly include the valve body, the disk seat, the valve gap, at the bottom of the valve, the valve clack of releasing, the pressurize valve clack, pressurize valve reset spring, first diaphragm, the second diaphragm, the third diaphragm, parts such as one-way check valve and discharge valve constitute, press mounting has first diaphragm between the valve gap valve body, press mounting has the third diaphragm between the valve bottom and the valve body, press mounting has the second diaphragm between the disk seat valve body, the valve clack of releasing and pressurize valve clack are installed respectively on above-mentioned diaphragm and are located the top and the below of disk seat respectively and form sealed vice with the disk seat respectively, one-way check valve sets up on the valve body and connects the last cavity and the lower cavity of valve body and prevents that gas from the last cavity backward flow of valve body to the lower cavity of valve body from the valve body, pressurize valve reset spring installs between pressurize. The wheel edge charging and discharging air valve has simple structure and low cost; the control system is greatly simplified, and the control precision of the tire inflation pressure is higher.
Description
Technical Field
The invention relates to an inflation and deflation control valve arranged on a wheel in a central inflation and deflation system of a cross-country vehicle tire, in particular to a wheel edge inflation and deflation valve.
Background
The central tyre inflating and deflating system for off-road vehicle consists of mainly wheel side valve, rotary sealed air chamber, locking valve, operation controller and other parts.
The wheel edge valve is one of the core components of the central tire inflation and deflation system, is installed on a wheel and rotates along with the wheel, and is mainly used for isolating a gas passage between a tire air chamber and a rotary seal air chamber so that the rotary seal air chamber is not under the action of gas pressure in a tire pressure maintaining state, and therefore the service life of a rotary seal element is prolonged.
The wheel valve is used as a key component of a central tire inflation and deflation system, and the structure and the working mode of the wheel valve determine the composition and the control mode of the control system. In the prior art, besides three states of inflation, deflation and pressure maintaining, the method also comprises a pressure measuring process: firstly, a system sends out a high-pressure air pulse signal to drive a wheel edge valve to enter an inflation state, and then the residual air pressure in a pipeline is detected to determine the inflation pressure value in a tire; in the deflation process, frequent detection is needed to determine the inflation pressure value so as to judge whether deflation continues, so that an electronic control unit is needed, an electromagnetic valve group is needed to be configured to perform actions of inflation, deflation and pressure measurement in a matching manner, and the control system is complex in structure, poor in reliability and high in cost. Particularly, more electromagnetic valves need to be arranged on a multi-axle vehicle, and the frequent action of the electromagnetic valves can also influence the normal operation of other systems of the vehicle.
Disclosure of Invention
The invention aims to provide a wheel side inflation and deflation valve, which can automatically perform inflation and deflation in the valve, save the pressure measurement link, simplify the control system, improve the control precision of tire inflation pressure and reduce the application cost.
The invention is realized by the following technical scheme:
a wheel rim inflation and deflation valve mainly comprises a valve body, a valve seat, a valve cover, a valve bottom, a deflation valve clack, a pressure maintaining valve return spring, a first diaphragm, a second diaphragm, a third diaphragm, a one-way check valve and a deflation valve, wherein the valve body is divided into an upper chamber and a lower chamber, the valve cover is positioned above the valve body, the first diaphragm is arranged between the valve cover and the valve body in a pressing mode, the valve bottom is positioned below the valve body, the third diaphragm is arranged between the valve bottom and the valve body in a pressing mode, the valve seat is installed in a concave platform at the center of the top of the valve body, the second diaphragm is arranged between the valve seat and the valve body in a pressing mode, the deflation valve clack is installed on the first diaphragm, positioned above the valve seat and forms a sealing pair with the valve seat, the pressure maintaining valve clack is installed on the second diaphragm and the third diaphragm, positioned below the valve seat and, the pressure maintaining valve is characterized in that a pressure maintaining valve return spring is arranged between a pressure maintaining valve clack and a valve bottom and supports the pressure maintaining valve clack against a valve seat by means of self compression force, the side wall of the valve body is provided with an air inlet and an air outlet, the air inlet is communicated with a cavity between a first diaphragm and a valve cover and is communicated with a lower cavity of the valve body, the air outlet is communicated with an upper cavity of the valve body, the pressure maintaining valve clack is provided with a plurality of through holes for communicating the cavity between the second diaphragm and the valve seat with the cavity between a third diaphragm and the valve;
furthermore, the air inlet is connected with the rotary sealing air chamber through an air pipe, and the air outlet is connected with the tire air chamber through an extension pipe;
furthermore, the valve seat is a revolving body component with a concave cavity at the bottom, an air release valve port is arranged at the center of the top of the valve seat, the air release valve flap is positioned above the air release valve port, and the pressure maintaining valve flap is positioned below the air release valve port and in the concave cavity of the valve seat;
furthermore, a concave cavity is arranged at the bottom of the pressure maintaining valve clack, and the pressure maintaining valve return spring is arranged in the concave cavity;
furthermore, the one-way check valve is a check valve opened by micro pressure, and the one-way check valve only enables gas in the lower cavity of the valve body to enter the upper cavity of the valve body in one way and cannot flow reversely;
furthermore, the exhaust valve consists of an exhaust valve seat and a lip-shaped ring, wherein the exhaust valve seat is provided with an exhaust hole communicated with the atmosphere, and the lip-shaped ring is used for preventing external impurities from entering the valve;
furthermore, the exhaust valve is embedded in the valve bottom from the upper part of the valve bottom;
furthermore, the valve cover, the valve body and the valve bottom are connected into a whole by a plurality of bolts arranged in the circumferential direction.
The working principle of the invention is as follows:
when the air inlet is communicated with the atmosphere, the pressure retaining valve flap closes the air release valve port under the compression force of the pressure retaining valve return spring, the tire is in a pressure retaining state, and the rotary sealing air chamber is not under the action of the air pressure;
when pressure gas output after passing through the pressure regulating valve enters the valve from the air inlet through the rotary sealing air chamber, the first diaphragm drives the pressure maintaining valve clack to move downwards under the action of gas pressure, at the moment, the pressure maintaining valve is opened, the first diaphragm controls the opening and closing of the deflation valve port under the action of gas pressure difference, if the inflation pressure in the tire air chamber is higher than the set value of the pressure regulating valve, the deflation valve clack moves upwards, the deflation valve port is opened, the gas from the tire air chamber enters the atmosphere through the deflation valve port and the deflation valve, and the tire is in a deflation state at the moment; if the inflation pressure in the tire air chamber is lower than the set value of the pressure regulating valve, the deflation valve flap moves downwards to close the deflation valve port, meanwhile, the one-way check valve is opened, the pressure air in the lower cavity of the valve body enters the upper cavity of the valve body through the one-way check valve and then enters the tire air chamber through the air inlet, and the tire is in an inflation state at the moment;
when the air inlet is communicated with the atmosphere again, the pressure gas in the lower cavity of the valve body is quickly exhausted, the air outlet is closed by the pressure retaining valve flap under the action of the pressure retaining valve return spring, and the tire enters a pressure retaining state.
The invention has the beneficial effects that:
1. the wheel edge is used for exhausting air, the air-bleeding speed is controllable, and the rapid air-bleeding can be realized;
2. the automatic inflation and deflation in the valve are realized, the link of pressure measurement is omitted, the operation control system is simplified, and the tire inflation pressure can be regulated and controlled by adopting a simple pressure regulating valve without the participation of an electric control unit;
3. the inflation pressure of the tire is continuously adjustable, and the tire has higher precision;
4. simple structure, the reliability is high, has greatly reduced the application cost.
Drawings
FIG. 1 is a schematic view of the structural principle of the wheel rim inflation/deflation valve of the present invention;
in the figure, 1, a valve cover, 2, a first diaphragm, 3, a valve seat, 4, a release valve flap, 5, a pressure maintaining valve flap, 6, a second diaphragm, 7, a valve body, 8, a valve bottom, 9, a third diaphragm, 10, a pressure maintaining valve return spring, 11, a release valve seat, 12, a lip-shaped ring, 13, a one-way check valve, a, an air inlet, b and an air outlet;
Detailed Description
The invention is further illustrated with reference to fig. 1:
a wheel rim inflation and deflation valve mainly comprises a valve body (7), a valve seat (3), a valve cover (1), a valve bottom (8), a deflation valve clack (4), a pressure maintaining valve clack (5), a pressure maintaining valve reset spring (10), a first membrane (2), a second membrane (6), a third membrane (9), a one-way check valve (13), an exhaust valve seat (11) and a lip ring (12), and the like, wherein the valve body (7) is divided into an upper cavity and a lower cavity, the valve cover (1) is positioned above the valve body (7) and is provided with the first membrane (2) in a pressing way with the valve body (7), the valve bottom (8) is positioned below the valve body (7) and is provided with the third membrane (9) in a pressing way with the valve body (7), the valve seat (3) is arranged in a concave platform at the center of the top of the valve body (7) and is provided with the second membrane (6) in a pressing way with the valve body (7), the deflation valve clack (4) is arranged on the first membrane (2), the pressure maintaining valve clack (5) is installed on the second membrane (6) and the third membrane (9) and located below the valve seat (3) and forms a sealing pair with the valve seat (3), the one-way check valve (13) is arranged on the valve body (7) and connected with the upper chamber and the lower chamber of the valve body (7) and prevents gas from reversely flowing back into the lower chamber of the valve body (7) from the upper chamber of the valve body (7), the pressure maintaining valve reset spring (10) is installed between the pressure maintaining valve clack (5) and the valve bottom (8) and supports the pressure maintaining valve clack (5) on the valve seat (3) by virtue of self compression force, the side wall of the valve body is provided with an air inlet (a) and an air outlet (b), the air inlet (a) is communicated with the chamber between the first membrane (2) and the valve cover (1) and is communicated with the lower chamber of the valve body (7), the air outlet (b) is communicated with the upper chamber of the valve body (7), and the pressure maintaining valve clack (5) is provided with the chamber between the And the valve bottom (8), and an exhaust valve seat (11) is arranged on the valve bottom (8);
further, the air inlet (a) is connected with the rotary sealed air chamber through an air pipe, and the air outlet (b) is connected with the tire air chamber through an extension pipe;
furthermore, the valve seat (3) is a revolving body component with a concave cavity at the bottom, an air release valve port is arranged at the center of the top of the valve seat (3), the air release valve flap (4) is positioned above the air release valve port, and the pressure maintaining valve flap (5) is positioned below the air release valve port and in the concave cavity of the valve seat (3);
furthermore, a concave cavity is arranged at the bottom of the pressure maintaining valve clack (5), and the pressure maintaining valve return spring (10) is arranged in the concave cavity;
furthermore, the one-way check valve (13) is a check valve opened by micro pressure, and the one-way check valve (13) only enables gas in the lower cavity of the valve body (7) to enter the upper cavity of the valve body (7) in a one-way mode and cannot flow reversely;
furthermore, the exhaust valve consists of an exhaust valve seat (11) and a lip-shaped ring (12), an exhaust hole communicated with the atmosphere is formed in the exhaust valve seat (11), and the lip-shaped ring (12) is used for preventing external impurities from entering the valve;
furthermore, the exhaust valve is embedded in the valve bottom (8) from the upper part of the valve bottom (8);
furthermore, the valve cover (1), the valve body (7), the valve bottom (8) and other parts are connected into a whole by a plurality of bolts arranged in the circumferential direction.
While the invention has been described in detail with reference to specific preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A wheel rim inflation and deflation valve mainly comprises a valve body, a valve seat, a valve cover, a valve bottom, a deflation valve clack, a pressure maintaining valve return spring, a first diaphragm, a second diaphragm, a third diaphragm, a one-way check valve and a deflation valve, wherein the valve body is divided into an upper chamber and a lower chamber, the valve cover is positioned above the valve body, the first diaphragm is arranged between the valve cover and the valve body in a pressing mode, the valve bottom is positioned below the valve body, the third diaphragm is arranged between the valve bottom and the valve body in a pressing mode, the valve seat is installed in a concave platform at the center of the top of the valve body, the second diaphragm is arranged between the valve seat and the valve body in a pressing mode, the deflation valve clack is installed on the first diaphragm, positioned above the valve seat and forms a sealing pair with the valve seat, the pressure maintaining valve clack is installed on the second diaphragm and the third diaphragm, positioned below the valve seat and, the pressure maintaining valve is characterized in that a pressure maintaining valve return spring is installed between a pressure maintaining valve clack and a valve bottom, an air inlet and an air outlet are formed in the side wall of the valve body, the air inlet is communicated with a cavity between the first diaphragm and the valve cover and communicated with a lower cavity of the valve body, the air outlet is communicated with an upper cavity of the valve body, a plurality of through holes used for communicating the cavity between the second diaphragm and the valve seat and the cavity between the third diaphragm and the valve bottom are formed in the pressure maintaining valve clack, and an exhaust valve.
2. The wheel rim charge and discharge valve according to claim 1, characterized in that: the air inlet is connected with the rotary sealing air chamber through an air pipe, and the air outlet is connected with the tire air chamber through an extension pipe.
3. The wheel rim charge and discharge valve according to claim 1, characterized in that: the valve seat is a revolving body component with a concave cavity at the bottom, an air release valve port is arranged at the center of the top of the valve seat, the air release valve flap is positioned above the air release valve port, and the pressure maintaining valve flap is positioned below the air release valve port and in the concave cavity of the valve seat.
4. The wheel rim charge and discharge valve according to claim 1, characterized in that: the pressure maintaining valve is characterized in that a concave cavity is formed in the bottom of the pressure maintaining valve clack, and the pressure maintaining valve return spring is installed in the concave cavity and supports the pressure maintaining valve clack against the valve seat by means of self compression force.
5. The wheel rim charge and discharge valve according to claim 1, characterized in that: the one-way check valve is a check valve opened by micro pressure.
6. The wheel rim charge and discharge valve according to claim 1, characterized in that: the exhaust valve consists of an exhaust valve seat and a lip-shaped ring, wherein the exhaust valve seat is provided with an exhaust hole communicated with the atmosphere, and the lip-shaped ring is used for preventing external impurities from entering the valve.
7. The wheel rim charge and discharge valve according to claim 1, characterized in that: the exhaust valve is embedded in the valve bottom from the upper part of the valve bottom.
8. The wheel rim charge and discharge valve according to claim 1, characterized in that: the valve cover, the valve body and the valve bottom are connected into a whole by a plurality of bolts arranged in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025381.8A CN106939939B (en) | 2016-01-05 | 2016-01-05 | Wheel rim inflation and deflation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025381.8A CN106939939B (en) | 2016-01-05 | 2016-01-05 | Wheel rim inflation and deflation valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106939939A CN106939939A (en) | 2017-07-11 |
| CN106939939B true CN106939939B (en) | 2020-06-16 |
Family
ID=59468827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610025381.8A Expired - Fee Related CN106939939B (en) | 2016-01-05 | 2016-01-05 | Wheel rim inflation and deflation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106939939B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314440A (en) * | 1964-10-05 | 1967-04-18 | Berg Mfg & Sales Co | Valve for tire stems |
| US4254312A (en) * | 1978-12-29 | 1981-03-03 | Eaton Corporation | Temperature compensated fill valve/pressure switch |
| US4883105A (en) * | 1988-09-12 | 1989-11-28 | Eaton Corporation | Wheel end valve for central tire inflation system |
| US7089953B2 (en) * | 2001-03-30 | 2006-08-15 | Henri Beau | Controlled pneumatic device for automatic inflating/deflating of a confinement capacity of a gas fluid under relative pressure |
| CN101162063A (en) * | 2007-10-30 | 2008-04-16 | 武汉元丰汽车技术发展有限公司 | Automobile tyre valve |
| CN201277375Y (en) * | 2008-10-17 | 2009-07-22 | 浙江派沃自控仪表有限公司 | Sanitary pneumatic tank bottom regulation valve |
| CN202769015U (en) * | 2012-08-29 | 2013-03-06 | 江阴万讯自控设备有限公司 | Upright-column-type film operation mechanism |
| CN104661837A (en) * | 2012-09-19 | 2015-05-27 | 斯太姆科有限合伙 | Central tire inflation system pressure regulator |
| CN104728500A (en) * | 2015-02-26 | 2015-06-24 | 武汉元丰汽车技术发展有限公司 | Pressure retaining valve used for automobile tire inflation and deflation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112015018992A2 (en) * | 2013-02-11 | 2017-12-12 | Dana Heavy Vehicle Sys Group | valve assembly for a central tire inflation system and wheel valve assembly |
-
2016
- 2016-01-05 CN CN201610025381.8A patent/CN106939939B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314440A (en) * | 1964-10-05 | 1967-04-18 | Berg Mfg & Sales Co | Valve for tire stems |
| US4254312A (en) * | 1978-12-29 | 1981-03-03 | Eaton Corporation | Temperature compensated fill valve/pressure switch |
| US4883105A (en) * | 1988-09-12 | 1989-11-28 | Eaton Corporation | Wheel end valve for central tire inflation system |
| US7089953B2 (en) * | 2001-03-30 | 2006-08-15 | Henri Beau | Controlled pneumatic device for automatic inflating/deflating of a confinement capacity of a gas fluid under relative pressure |
| CN101162063A (en) * | 2007-10-30 | 2008-04-16 | 武汉元丰汽车技术发展有限公司 | Automobile tyre valve |
| CN201277375Y (en) * | 2008-10-17 | 2009-07-22 | 浙江派沃自控仪表有限公司 | Sanitary pneumatic tank bottom regulation valve |
| CN202769015U (en) * | 2012-08-29 | 2013-03-06 | 江阴万讯自控设备有限公司 | Upright-column-type film operation mechanism |
| CN104661837A (en) * | 2012-09-19 | 2015-05-27 | 斯太姆科有限合伙 | Central tire inflation system pressure regulator |
| CN104728500A (en) * | 2015-02-26 | 2015-06-24 | 武汉元丰汽车技术发展有限公司 | Pressure retaining valve used for automobile tire inflation and deflation system |
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| Publication number | Publication date |
|---|---|
| CN106939939A (en) | 2017-07-11 |
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Granted publication date: 20200616 Termination date: 20220105 |